|
|
Utilization of waste from the food industry for wastewater treatment
Nedvědická, Lucie ; Obruča, Stanislav (referee) ; Diviš, Pavel (advisor)
This bachelor thesis disserts about options and issues how to utilize waste from the food industry for wastewater treatment contaminated with heavy metals. The theoretical part describes the general characteristics of heavy metals, as well as the permissible and limit values of these heavy metals in waste water. Furthermore, it is described in this document which chemical methods can be used in order to remove heavy metals from wastewater. This thesis also deals with methods how to analyze the adsorbed amount of sorbed substance, means by using AAS, AFS, AES, MS and ICP – OES methods. At the end of the theoretical part, the issues of the different wastes from the food industry are dealing with and their adsorption ability. In the experimental section it was investigated the tea waste utilization in order to eliminate copper ions from waste water. It has been tested mainly the effect of pH on the adsorption of copper onto tea waste and maximum possible adsorption capacity onto tea waste. The pH optimum for the sorption of cooper from solution onto tea waste was within range 5-6 and the maximum possible adsorption capacity 0,0336 mmol•g-1 was determined. The results indicate that the tea waste could be used as a suitable adsorbent for the purification of waste water, mainly due to good availability, low cost and good adsorption ability of heavy metals.
|
|
|
Application of activated carbon in flue gas treatment process
Navrátil, Petr ; Niesner, Jakub (referee) ; Jedlička, Filip (advisor)
The objective of this bachelor thesis is to explain the problematic of flue gas treatment from the air pollutants mainly by methods using adsorption on activated carbon. There is an introduction to environmental protection, description of selected chemicals, charcoal and description of technologies to remove pollutants in municipal waste incinerators, and finally mention the possibilities of disposal or reuse of a saturated carbon. And finally selection of appropriate methods and design for a specific application.
|
|
|
Application of activated carbon in flue gas treatment process
Navrátil, Petr ; Niesner, Jakub (referee) ; Jedlička, Filip (advisor)
The objective of this bachelor thesis is to explain the problematic of flue gas treatment from the air pollutants mainly by methods using adsorption on activated carbon. There is an introduction to environmental protection, description of selected chemicals, charcoal and description of technologies to remove pollutants in municipal waste incinerators, and finally mention the possibilities of disposal or reuse of a saturated carbon. And finally selection of appropriate methods and design for a specific application.
|
|
|
Reactivity of modified humic gels
Lang, David ; Sedláček, Petr (referee) ; Klučáková, Martina (advisor)
This bachelor thesis deals with humic acid gels and their ability to bind metallic ions on their surface. In the thesis the adsorption of copper ions on humic gels was studied. The gels were prepared by dissolving the humic acid in sodium hydroxide or sodium tripolyphosphate and then by precipitating with hydrochloric acid or magnesium chloride. Adsorption was studied at different concentrations of the copper (II) chloride and measured on UV-VIS spectrophotometer. It was proved from measuring that gels made from sodium tripolyphosphate are adsorbing less copper ions than the ones prepared by sodium hydroxide. Also, the copper ions are bound with smaller force on gels prepared with polyphosphate. Gels precipitated with magnesium chloride adsorb much more than gels precipitated with acid, Thus the extracted amounts are bigger.
|
|
| |
|
|
Activated carbon adsorption
Vrána, Tomáš ; Dvořák, Radek (referee) ; Solodyankin, Kirill (advisor)
The objective of this bachelor’s thesis is the description of the Activated carbon adsorption. It’s here division activated carbon according to form and using. Further then description adsorption from fluent and from liquid phase on activated carbon. There are here reffered to factors influencing adsorption. At last chapter is comparing effectiveness adsorption near activated carbon, zenotil and silica gel.
|
|
|
The problems of fenol sorption from waste water
Židek, Michal ; Pavlovský,, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
The bachelor work deals of sorption of phenol from waste water. In theoretical part the basic characteristic of phenol, their effects and presence in environmental compounds are described. The possibility of removal phenol from waste water in waste water treatment is also described. The adsorption process of removal phenol introduced too. The analysis current adsorbents using in removal phenol from aqueous solutions and characteristic properties are also presented in relation to materials on the base of clay minerals. The experimental part is focused on the possibility of removal phenol from aqueous solution via adsorption mechanism under various pH conditions.
|
|
|
Problems of phenols in water
Tylichová, Petra ; Čáslavský, Josef (referee) ; Doležalová Weissmannová, Helena (advisor)
This bachelor`s thesis deals with the issue of phenols in the waters. The theoretical part summarises the information about the characteristics of the phenols, its use, appearance in the environment, and its effects on human health. There are described methods of determination these substance in the waters. The last chapter disserts on possible methods of eliminating the phenols from the aqueous environment with special attention paid to the adsorption method. Part of this thesis is also dedicated to the chlorinated phenols which originate from chlorination of the phenolic waters and which cause the sensory interferences of the waters. The experimental part of this thesis is dedicated to removing the phenol from a model water through the adsorption into a powdery active carbon Norit SA SUPER.
|
|
|
Adsorption of metal ions on humic acids
Pokorná, Markéta ; Mgr. Martina Havelcová, Ph.D (referee) ; Klučáková, Martina (advisor)
The Bachelor´s thesis deals with humic acids and their ability to bind metal ions on their surface. Humic acids are generally aromatic polycyclic compounds, which contain phenolic and carboxylic functional groups on their sidechains. Because of their functional groups, they are able to form stable complex compounds. In this thesis, the adsorption of lead ions was studied by electroanalytical method called flow-through coulometry.
|
|
| |
guest ::
